diff --git a/packages/bsp/common/etc/init.d/armhwinfo b/packages/bsp/common/etc/init.d/armhwinfo
index 8f514e0474..424e925feb 100755
--- a/packages/bsp/common/etc/init.d/armhwinfo
+++ b/packages/bsp/common/etc/init.d/armhwinfo
@@ -363,6 +363,9 @@ add_usb_storage_quirks() {
 } # add_usb_storage_quirks
 
 activate_zram() {
+	# Do not interfere with already present config-zram package
+	dpkg -l | grep -q 'zram-config' && return
+
 	# Load zram module with n instances (one per CPU core, 4 are the maximum)
 	cpu_cores=$(grep -c '^processor' /proc/cpuinfo | sed 's/^0$/1/')
 	[[ ${cpu_cores} -gt 4 ]] && zram_devices=4 || zram_devices=${cpu_cores}
@@ -372,11 +375,12 @@ activate_zram() {
 	# Use half of the real memory by default --> 1/${ram_divisor}
 	ram_divisor=2
 	mem_info=$(LC_ALL=C free -w 2>/dev/null | grep "^Mem" || LC_ALL=C free | grep "^Mem")
-	memory_total=$(awk '{printf("%d",$2/1024)}' <<<${mem_info})
+	memory_total=$(awk '{printf("%d",$2*1024)}' <<<${mem_info})
 	mem_per_zram_device=$(( ${memory_total} / ${zram_devices} / ${ram_divisor} ))
 
 	for (( i=0; i<zram_devices; i++ )); do
 		echo -n ${mem_per_zram_device} > /sys/block/zram${i}/disksize
+		[[ -f /sys/block/zram${i}/comp_algorithm ]] && echo lz4 >/sys/block/zram${i}/comp_algorithm 2>/dev/null
 		mkswap /dev/zram${i}
 		swapon -p 5 /dev/zram${i}
 	done